Using High Speed Phase Change Material for DVD+RW 2.4x Dual Layer

Author

Fang, Kuan-Lan ; Liu, Pang-Chi ; Ma, Shih-Hsien ; Chang, Han-Feng ; Chiang, Don-Yau

Author_Institution

CMC Magnetics Corp., Tao-Yuan

Volume

43

Issue

2

fYear

2007

Firstpage

859

Lastpage

860

Abstract

The authors succeeded in developing an innovative high-speed phase change material applied for DVD+RW dual layer recording media. The high transmittance of the front-side recording layer combining the stacking material and thin film structure was found. This front-side recording layer is a key functional layer structure for the dual layer phase change optical disk. The same writing powers can be used for both recording layers and the same reflection of 7% is obtained. The transmittance for the front-side layer is 58.1% and 59.4% in amorphous and crystalline state, respectively. The jitter after 10 direct-overwriting cycles is 6.5% and 7% for the front-side and back-side recording layer, respectively

Keywords

amorphous state; digital versatile discs; jitter; phase change materials; thin films; DVD+RW dual layer recording media; amorphous state; back-side recording layer; crystalline state; direct-overwriting cycles; dual layer phase change optical disk; front-side recording layer transmittance; functional layer structure; high-speed phase change material; jitter; thin film structure; DVD; Disk recording; High speed optical techniques; Optical films; Optical materials; Optical recording; Phase change materials; Stacking; Transistors; Writing; Direct overwrite (DOW) cycle; dual layer; phase change material; reflection;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.888468

Filename

4069015